Drywall Screws 
1) Materials: carbon steel, alloy steel, stainless steel,...

2) Diameter range: 2.9 - 6.3mm
3) Length range: 9.5 - 150mm

Mainly used for fixing and connecting iron joists and recycled
wooden products

Drywall Screws
1)Standard:DIN,ANSI 
2)Material:Carbon Steel 
3)Diameter:3.5~4.8mm,6#~10# 
4)Length:13~127mm,1/2"~5